Home / 879,898.70-1,321,451.85-769,673.90

Finding the Fourth Proportional to 879,898.70, 1,321,451.85 and 769,673.90

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Solution

The fourth proportional to 879,898.70, 1,321,451.85 and 769,673.90 is: 1,155,913.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,898.70 : 1,321,451.85 = 769,673.90 : x
  2. Step 2: Convert to fraction form
    879,898.70/1,321,451.85 = 769,673.90/x
  3. Step 3: Cross multiply
    879,898.70x = 1,321,451.85 × 769,673.90
  4. Step 4: Simplify right side
    879,898.70x = 1,017,086,999,051.72
  5. Step 5: Solve for x
    x = 1,017,086,999,051.72/879,898.70
  6. Step 6: Final answer
    x = 1,155,913.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.